Product Name: 1-Ethyl-2,3-Dimethylimidazolium Acetate
Synonyms: EMMIm Ac, Ionic Liquid
CAS Number: 655291-01-5
Recommended Use: Used in research, cellulose dissolution, catalysis
Supplier Information: Chemical distributors, specialty labs
Contact Information: Company address, emergency phone
Emergency Phone: CHEMTREC at 1-800-424-9300 (in US)
GHS Classification: Eye irritation (Category 2), Skin irritation (Category 2)
Signal Word: Warning
Hazard Statements: Causes skin and eye irritation, may cause respiratory irritation
Pictograms: Exclamation mark
Precautionary Statements: Avoid contact with skin and eyes, wash thoroughly after handling, use only outdoors or in well-ventilated area, wear protective gloves and eye protection
Target Organs: Eyes, skin, respiratory system
Other Hazards: No data for carcinogenicity or mutagenicity, not listed by IARC, NTP, OSHA
Potential Health Effects: Short-term exposure may cause discomfort, long-term effects are not well studied.
Chemical Name: 1-Ethyl-2,3-Dimethylimidazolium Acetate
Chemical Formula: C9H17N2O2
Molecular Weight: 185.24 g/mol
Purity: ≥95%
Impurities: Water (<0.5%), trace organic byproducts
EC Number: Not assigned
Other Identifiers: None
General Advice: Remove from exposure, seek medical attention for symptoms
Inhalation: Move to fresh air, assist breathing if needed
Skin Contact: Remove contaminated clothing, wash skin with plenty of soap and water, get medical advice for persistent irritation
Eye Contact: Rinse cautiously with water for at least 15 minutes, remove contact lenses if present and continue rinsing, seek immediate medical care
Ingestion: Rinse mouth, do not induce vomiting, seek medical help
Most Important Symptoms: Redness, irritation, possible skin rash; respiratory distress if inhaled
Immediate Medical Attention: Necessary for eye exposure or prolonged symptoms
Notes for Physicians: Symptomatic treatment, monitor for chemical pneumonitis if inhaled
Suitable Extinguishing Media: Water spray, foam, carbon dioxide, dry chemical
Unsuitable Extinguishing Media: High volume water jets may spread material
Hazardous Combustion Products: Carbon oxides, nitrogen oxides, imidazole fragments
Specific Hazards: May emit toxic fumes if heated strongly
Protective Equipment for Firefighters: Full protective gear, self-contained breathing apparatus (SCBA)
Special Procedures: Isolate fire area, use water spray to cool containers, do not allow runoff to reach drains
Explosion Data: No sensitivity to mechanical impact or static discharge reported
Personal Precautions: Avoid breathing vapors, ventilate area, wear gloves and goggles
Environmental Precautions: Prevent further leakage or spillage, do not flush into surface water or sanitary sewer
Clean Up Methods: Absorb with inert material (sand, earth), place in chemical waste container, clean area with water and detergent
Emergency Procedures: Evacuate personnel to safe area if large spill, avoid skin and eye contact during cleanup
Disposal Consideration: Dispose of spilled material and cleanup residues in accordance with local regulations
Decontamination: Wash contaminated surfaces thoroughly, ventilate area before reentry
Handling: Use in well-ventilated space, wear protection for skin and eyes, minimize dust or aerosol formation, avoid breathing vapors
Storage Conditions: Store in tightly closed container, keep in cool, dry place, separate from incompatible materials such as strong oxidizers and acids
Hygiene Practices: Wash hands after handling, remove contaminated clothing before entering eating areas
Engineering Controls: Provide local exhaust ventilation where possible
Storage Incompatibilities: Strong acids, bases, oxidizers
Other Requirements: Avoid contact with moisture, protect from sunlight and sources of heat
Engineering Controls: Local exhaust ventilation recommended, safety shower and eye-wash station accessible
Threshold Limit Value: Not established for this chemical
Personal Protective Equipment:
- Eye Protection: Chemical safety goggles or face shield
- Skin Protection: Gloves (nitrile or neoprene), lab coat
- Respiratory Protection: Use approved respirator if airborne exposure limits are exceeded, or if irritation occurs
- Other Equipment: Close-toed shoes, long pants
General Precautions: Avoid unnecessary exposure, wash hands thoroughly after handling
Environmental Exposure Controls: Prevent discharge into the environment
Appearance: Colorless to pale yellow liquid
Odor: Faint ammoniacal or vinegar-like
Melting Point: -16°C
Boiling Point: Decomposes before boiling (approx. 220°C at 760 mmHg)
Density: 1.06 - 1.12 g/cm³ at 20°C
pH: 8 - 9 (10% solution in water)
Solubility in Water: Completely miscible
Vapor Pressure: <0.01 mmHg at 20°C
Viscosity: 150 - 230 cP at 25°C
Partition Coefficient (n-octanol/water): Not available
Flash Point: 150°C (closed cup)
Autoignition Temperature: Not determined
Evaporation Rate: Negligible at room temperature
Other Data: Stable under normal temperatures and pressures
Chemical Stability: Stable under recommended storage conditions
Thermal Decomposition: Begins above 200°C, giving off fumes
Conditions to Avoid: Excessive heat, open flames, moisture
Incompatible Materials: Acids, strong oxidizers, reducing agents
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, nitrogen oxides, imidazolium fragments
Polymerization: Not expected to occur
Reactivity: No hazardous reactions under normal storage and handling
Acute Toxicity: Oral LD50 (derived): >2000 mg/kg (rat, estimated)
Dermal Toxicity: May cause skin irritation on prolonged contact
Eye Irritation: Causes moderate irritation
Inhalation Toxicity: May cause respiratory irritation, no significant systemic toxicity data
Chronic Toxicity: No data on long-term exposure; not expected to bioaccumulate
Sensitization: Not classified as a sensitizer
Carcinogenicity: Not listed as a carcinogen by NTP, IARC, OSHA
Mutagenicity: Not classified based on available data
Reproductive Toxicity: Not established
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Symptoms: Redness, irritation, possible dermatitis or cough
Medical Conditions Aggravated: Pre-existing eye, skin, or respiratory disorders
Aquatic Toxicity: Limited data; expected to have low toxicity based on chemical structure
Persistence and Degradability: Likely to persist in the environment due to low volatility
Bioaccumulation: Potential for accumulation in aquatic organisms not well understood
Mobility in Soil: Expected to be mobile in water due to high solubility
Ecotoxicological Effects: Avoid release to the environment, as ionic liquids have shown potential for negative effects on aquatic life in some studies
Other Adverse Effects: Not expected to cause ozone depletion or global warming
Decomposition in Environment: Slow under standard soil and water conditions
Waste Treatment Methods: Dispose of according to local, regional, and national regulations
Product Disposal: Small amounts can be diluted with water and neutralized, then disposed of through licensed chemical waste
Contaminated Packaging: Rinse thoroughly and dispose of as hazardous waste
Special Precautions: Do not flush undiluted material or large quantities into public waterways
Incineration: Permissible at authorized facility
Recycling or Reuse: Consider recycling if practical, minimize generation of waste solvents
Disposal Containers: Use clearly labeled, chemically resistant containers
UN Number: Not regulated for transport
UN Proper Shipping Name: Not classified as a dangerous good
Transport Hazard Class: Not applicable
Packing Group: Not applicable
Marine Pollutant: Not classified
Special Precautions: Prevent leakage, ensure packaging integrity
Transport in Bulk: Not regulated under Annex II of MARPOL 73/78
Other Information: Check all local, national and international regulations prior to shipment
TSCA Inventory: Not listed
SARA Title III (Sections 302/311/312/313): Not subject to reporting
OSHA Hazard Communication Standard: Classified as hazardous due to eye and skin irritation
DSL/NDSL (Canada): Not listed
EINECS/ELINCS (EU): Not listed
REACH Registration: Not registered
California Proposition 65: Not listed
Other State Regulations: Check specific state requirements
Labeling Requirements: Follow GHS guidelines, include hazard pictograms and statements
Chemical Risk Assessment: Necessary for workplace use, ensure controls for exposure
Other Standards: Ensure compliance with local environmental regulations
